OK, this isn’t exactly what you think it is. I just think this is a good idea.

OK, so start by listing your current collection.

Then, say what yo-yos you are trying to trade, and say what you want for them.

Then, say what yo-yos you KNOW you are going to buy soon.

This could also be considered a way to know what other people are trading, and if you see something you want from somebody, by all means, PM them! But don’t go posting “I want that, would you accept this?” in my thread. PMs.